Tree

thingiverse

This structure serves as a rather straightforward example of nature itself, particularly in the form of an actual living organism that belongs to the plant kingdom and bears many visible and identifiable characteristics. The human being refers specifically to the part referred to as the upper extremity, or trunk of the living being, with all branches sprouting from it like limbs extending into space from this sturdy structure that resembles more than anything a great, towering pillar standing tall in its place on Earth's surface amidst many other identical units arranged according to specific rules of nature that make life possible.